Constant-pressure press



Feb. 20, 1923. 11,445,744. vF. A. BRACKETT.

CONSTANT PRESSURE PRESS. FILED JAN. 3. 1920.

5 SHEETS- SHEET l- Feb. 2@, 1923.

1,445,744. F. A. BRACKETT.

CONSTANT PRESSUREPRESS. FILED' JAN. 3. 1920.

5 HEETS-SHEET 2- F. A. BRACKETT. I I CONSTANT PRESSURE PRESS.

Feb. 2U, 1923.

s SHEETPSQEET a;

FILED JAN. 3. 1920 4 Feb. 29, 19236 F. A. BRAC-KETT. cowsmm PRESSUREPRESS.

FILED JAN. 3, 1920 I 5 SHEET8-SHEET 4.

Feb. 2m, 1923 F. A. BRACKETT.

powsmm PRESSURE PRESS. v

5 SHEETS-$HEET 5- FILED IAN. 3.1920.

rnann a. panorama, or maucnnsrnn, mew rrerrrsrrrnn, assreuon "ro w. n.

MoELWAIN: CQILVIPANY, F BGSTON,

arassnennsnrrs.

consrnnr-rnnssunn rnnss.

application filed January 3, 1920. Serial No M9390.

i I Y} (ll/I whom am concern:

he it known that l, FRANK A. Bnacnnr'r,

la citizen or the United States, residingfat V lrlanchester, inthecounty oi Hlllsborough and setter Newl'clampshire, have invented new anduseful lmproyements in a Con stant Pressure'Press, ot which thefollowing a specification; p p

It is the'purpose oi this invention to furnish a machine for pressing acollection or pile of articles, at the same time providing means bywhich other articles may be applied to the pile or collection withoutrequiring or occasioning any. substantialslackening of the pressure. 1

Une of the uses "or which such a machine isparticularly des1gned andadapted 1s that of: holding under. pressure cemented and doubled shoesoles, that is, soles. which are made of two or more layers adhesivelyunited to 'ether, although this statement is not intended and is not tobe construed: as

in any sorta limitation ofthe utility of the invention or of the scopefor. which I claim protection for the same; but, explaining. the natureof the invent on by reference to time particular use as a concreteinstance, I would that, it is important that pressure should be appliedto the doubled layers as soon as possible after they have been cementedand laid together, that the pressure should be continued withoutsubstantial intermission until the adhesive has set or dried enough tobesecure, and that economical operation requires that a large number ofsoles or other articles operated upon should be held under pressure atthe same time in the same machine. The practice generally followed i inshoe -factories in making doubled soles is to cement and assembletogether theconstituent layers of a considerable number of suchsolesbei'ore any are put under pressure, that is, an operator willcement and double a number oi soles in succession llllllll he hasaccumulated a pile, when he will place the pllein the press, or put 1tin condition to be carried away and pressed. This is the most economicalprocedure heretofore devised for this sort of work, but it has cert ainincidental disadvantages, among which i this: that, while the solesfirst. cemented are awaiting the accumulation of a. pile largeenoun'h tobe handled, the cement corn- .Inences to dry, and this partial dryingmakes it impossible to obtain a perfect bond when the drying afterwardscontinues under 'lo retard the settingofthe cen'essure. ment in thismanner, the practicehas obtained or making the cement excessively thickand taclry, so that it will dry only slowly, but this results in the useof much more cement than is actually needed for the ultimate purpose oiei'lecting proper adhesion, and also requires more time after er thepresent invention, and, together with all modifications in structure anduse which in principle and inthe essential character of functionandresult embody the invention, isthe subject for which I claimprotection, and is hereinafter recited in the appended claims.

The machine which I have chosen to illustrate and describe in detail inthis specificationtlor explanation, is a press particularly designed forthe special purpose of putting and holding cemented anddoubled shoesoles under pressure, wherefore inthis descrip tion I shall generallyrefer to the invention as a machine for that purpose, and to the Workoperated on as shoe soles, but with out intending or implying anylimitation in the scope-ct the protection herein claimed. Referring nowto the drawings:

Figure 1 shows a side elevation of the specific sole press abovereferred to.

Figure 2 is a front elevation of the press. Figures and 4t show in sideelevation a detail of the machine, in two respectively differentpositions; this detail beingan indicator, to give warning when the pileof soles has been builtup to a predetermined heigl'it.

Figure 5 is a vertical section on line 5-5 of Figure Figure 6 is a frontelevation of the indicator referred to.

Figure 7 is a sectional plan view of the press, representing parts belowthe line 77 of Figures 1 and 2.

Figure 8 is a longitudinal section taken on the line.88 of Figure 7.

Figure 9'is a cross section taken on line 9-9 of Figure 8.

Figure 10 is a front elevation of a detail.

Figures 11 and 12 are fragmentary views showing the holder for the pileof soles, with the pile thereon, and an illustration of the meansprovided for securing the pile to maintain the pressure after itsremoval from the press.

Figure 13 is a plan, on an enlarged scale. of the parts below theline13-13 of Figures 1 and 2.

Figure 14 is a vertical longitudinal sec- .tion of the mechanismshown inFigure 13,

being taken on the line 1l14 of said figure.

Figure 15 is a detail of the mechanism shown in Fig. 14-.

Figure 16 is a cross section, enlarged, of a starting and stopping meansforming part of the particular combination illustrated in Figure 15.

Figures 17 and 18 are views similar to Figures 15 and 16, respectively,of the same stop motion in a different position.

Figure 19 is alongitudinal section of the clutch which forms a part ofthis mechanism.

Like reference characters indicate the same parts inall of the figures.

Describing now the machine thus illustrated, 21 represents the base,from which rise two bars 22 and 23, and two rods 24 and 25, allsupporting and securing a head 26. The base, bars, rods, and head thusdescribed provide a rigid frame, whereon the movable parts aresupported. Said bars are likewise guides, whereon a carriage 27 isadapted to slideup and down, said carriage having shoes,28 and 29, whichbear against the bars. The carriage has also an arm 30, projectingrearward, to which is connected a rope or a chain 31, passing over guidepulleys 32, and suspend ing a counterbalance weight The pulleys aresupported by a bracket 3 L on the head. The bars 22 and 23 are providedwith teeth 35, and in mesh with these teeth are pinions 36 and 37,aflixed to a shaft rotatable in bearings carried by the rarriage 27. Theshaft 38 also carries a brake drum 39, which is surrounded by a brakebandlO. This brake band may be a flexible or springy steel strip, havinga facing of leather or equivalent friction-causing material, as iscommon in brake constructions, and one end of it is connected to astud-l1. mounted on the, carriage, as shown in Figure 1. The carriagealso supports a second stud e2, on which there is pivoted lever 43,having as its short arm an adjustable screw 14- in a lug at one side ofthe lever. while its long arm is provided with a cum or wiper surface15, adapted to be engaged by a finger 46 on. the locking piece 17, whichis pivoted upon the shai' 3 and has an operating handle e28. The o .iposite end of the brake band from that which is at tached to the stud llas above described, carries a hug 49.. which is engaged by the screw Aor short arm of lever 13. Thus. when the lock device placed as shown inFigure 1, where the finger -16 has pressed against and ridden along thecam surface 4:5 up to the stop shoulder at the end of that surface. thebrake band is lightened about the brake drum. and the loci-L is recuredso as to maintain this condition. b being across the dead i-enter. or,if desired. b a slight depression in the cam surface which it enters.

By this means resistance is opposed in rotation of shaft 33, andtherefore to descent of the carriage 27. 'liis carriaae is provided tosupport the soles being pressed. and the resistance to its movement :1El'orded by the braiie determines the ii'iiensil ol' the pressure whichcan be applied by the press ing means about to he described. 'lhisresistance may be relaxed easily enough by turning the locking device incountercloek-wise rotation with respect to Figure 1 (in other words, bypulling; the handle to forward). The connterbalance weight acts toreturn the carriage to its raised position after a pile of soles hasbeen removed from it and the brake has been released. where by torelieve the operator oi unnecessary labor.

For holding the soles being pressed, there are provided. a number ofremovable luii'ionl plates or holders. of which one is shown in Figures7 to 12. Each of these holders con:- prises a base 50. conveniently madeas a casiing, and having sockets Til at suitable locations, and a supmrting plate mi. The latter is made of flat stock. with a suflicientlvsmooth upper surface. and having stillness enough to retain its flatcondition lander the conditions of use or abuse which it may meet: andit rests upon spriinrs 5 coniiu ined in the ockets 51, there beingenough of these spring): and sockets. properly till'tlllilttl, 1o givethe plate a stable and resilient support. llhen this holder is placed onthe carriage 27, as shown in Figures 3 and 9. the plalc 52 provides theactual work-s1ipport'ine' element or sin-few of the press. ll: isremovsole with the stack of soles at the end of one cycle of themachine, making way for subsiitution of a similar holder. The holder isequipped with means for retaining the supported accumulation of solesunder pri sure. even after removal from the press. such means being, inthe construction shown, 0

Hil

tions being in such sequence that pressure applied by the main presserto the whole accumulation or work pieces before, or at least not after,removal of the secondary pressers from operative position, and that thelatter more aside quickly thereafter to clear the side edges of thenewly added work piece a. Continuation of the downward movement ot themain presser first compresses the springs or the holder, and then forcesthe entire worh support downward against the resistance offered by thebrake 20. whereby iiredeterniined degree of pressure is applied to thework piece. Thereafter, when the worlr piece last put in place haspassed across the path of the secondary presse'rs, the lat-fer are movedinward to their previous positions. Finally with the completion oi. thecycle (which involves one complete rotation 01 the cam alt 72). the mainpresser is raised clear oi the last placed work piece, but the latterand all those beneath second pressers.

In this a non, the resilient work holder perilorirzs an importantfunction, because it causes delav in the downward displacement of thecar iage until the springs 53 have been compressed a certain amount;whereby, first, the compression of said springs allows the edge of thework piece to be carried tar enough below the secondary pressers toavoid interference with the latter; and then, their resilience causesthe pile to be lifted, when the main prcsser rises, and held against thesecondary pressers with the torce due to the initial compression of thesprings, which may be nearly as great as that applied by the mainpress 1. Thus, the springs 53 provided for such play or relative motionbetween the carriage and the work supporting element thereof (plate 52),under substantially constant pressure, as is needed to avoidinterference between the piece last added to the pile and the second arypressers. Such play or movement need not be great, but must be enough tocompensate for possible bending or warpeo condition of the work piece.

I hiweprovided a gage device trally locating the work pieces as they aresuccessively placed upon the pile, so that they will clear the secondarypreesers prop erly and also will be properly pressed upon by the latter,and to insure that the successive work pieces will be cm'rectly enoughaligned in the pile to avoid building up a for censlanting or crookedpile, a defect which might cause collapse in the case of worl: pieces,such as shoe soles, which have cornparatively slight width proportion tothe height to which the pile is built. This gage is shown in Figm'es'2", 8. 9, and 10, and it comprises an end stop 90, and resilientcentering arms 91, 92. Said end stop is se- .o are retained underpressure by the cured to a block 98. which slides in a guide wa 94 inthe under side. ol a plate 3):), and the plate has a dovetail rib 9?.fitting a guidcwav in a fixed lug bk on a par! of the machine head 26.locking pin 99. s n-lugpressed and manually rcle: sable (as shown inFigure e). provided for locking the entire in a manner permitting it tobe removed and others to be sul'istiluted. Al tached to the plate 9:)are two pivot-piur-t 100. on each of which is mounted a hub lo}. havingan arm 102. and each of said arms carryig a pin 10?. which project intoa transverse groove L'll 'l on the under side of the slide block: 93. asshown best in Figures 1" and 8. The side gaging arms Ell. and iii areeach secured to one of the two hubs Hll. A. v. r piece. when insertedinto the pres is :n( d onward by the operator until its end passesbchrceu the arms 9 and 92, and brings up against the stop 90. It theside arms should be spread wider apart than the width of the piece, thelatter is Further moved. d ancing the stop 90 with it until stopped b'the side gages striking the sides of the work i, llIUVQIl'lClll of theblock 93. of course, swings the side gages by the pin and slotconnection just described. llv this means it is insured that all solesapplied to the pile are approximately centrally aligned thereon.

This procedure is repeated whenever the workman or attendant has applieda coating of cement to a sole and laid another sole. (or a tap ordoubler of whatever size. iuaterial or thickness.) against this cementedsurtace,-that is. every few sccouds.aud at each operation a sole is:uldcd to the stack and put under pressure witluiut *astc of time andwitlmut relaxing the pressure already exerted on the stack. It makes nodifference what the thickness of the sole or other work piece may be. orwhether such work pieces are applied singly, orlwo or more at a time.except that it is not possible to apply a number of worl: pieces havinga combined greater thickness than the space between the main pr se whenraised. and the adjacent operative parts of the second ary pressevs.lVhatcvcr may be the thickness of the worl: piece capable of beinginserted. the main presscr applies the same pressure, and moves the worksupport and pieces thereon far enough to clear the secondary pressers.

l l hen a picdetcrnlinml number of the soles have been thus built into astack or pile (that is. when the pile has been built to prescribedheight). a signal is automaticall given to the operator. warning himthat it is now time to remove the pile. Such signal is given by avisible indicator 105. conveniently in the form oi a metal flag ortarget. supported at the front side oi the head so. where it isconspicuously before the eyes of to pull the link 110 slot 112, whichembraces andv is the operator, on a rock shaft 106. The latter carriesan erui 1)? close to the left-hand side oi? the head, to which ispivoteda latch 108, and to the latch is connected a spring 109, which isalso connectedwith a link 110 pivoted to the latch at 111. and having: a

The

fixed pin 113.

e u .o an approach to coincidence with the latch. or. in other words, todiminish the angle between thelinlr and the latch, and therefore to tendto bring; the

device into the position shown in lz'linure 4e,

and to hold it in that position. The lint: 11.0 prevents the latch fromhanging); down loosoand inoperative from the arm 10'? A.

spring 1141 (Figure 6) surrounds the rock.

is adapted to slide endwise, and it is norinally raised by a stirring);11 pressing againstthe lower guide 117 and against a collar 119 fixedtothe rod, which collar has,

an arm,120,.passinpf through a slot in the bar 22 beneath the sl de 27,as SllOWILllllTlQ- ure 5. This arm, coming 1n contact with the upper endof the slot, limits the upward movement ot the rod. and, when therod inits uppermostposition, a toe 02..

shoulder 121 011 its upper end overlies the latch 108, hold ng thetarget n the 'llpllgllt position shown in Figures 1, 3, and 6.

Now, whenthe carriage in its descent arrives at the arm120, it pushesthe rod 116 downward until the shoulder has, displaced and passed fromover the end of the latch 108, as shown by dotted lines in [Figure 3. Atthis t me the arm 107 and rocks turn relatively to the signal 105, thelatter being. rest ained from turning by the adjacent stationary head,and spring 109 being stretched; and, upon the shoulder passing off fromthe latch, the spring; causes this arm to be suddenlyraised and permitsthe targetto fall forward, linlr 110 then sliding along the fixed pin115, and being caused by the spring; 109 to. remain in that position.The operator is thus notified that a large enough number or soles hasbeen placed on] the pile, andhe then stops the machine .in the positionshown inFigure 2, where Q the holding presses are moved aside to clearthe pile, and the mam presser is pressed the machine, the operatorfirstlays a rigid down on top of the pile. This is not the normalstoppingposition of the machine,

but is one taken to allow theflbinder 58 to be passed around the pile.

It should be noted, however, that, before thusjstopping retainer plate122 11) top of the meat/wt uided on a, .irt .ot the spring 1S at't 1.06

pile, this plate, being used for the purpose of protecting the solesfrom injuryby the binder chain and of distributing the pressure of thehinder over substantially the whole area or thepile, instead. ofconcentrating such pressure at the line where the 'chain passes over it.That is, a stiff retainer plate. is used for the purposes indicated whenthe work pieces are, like soles, more or less soft and flexible, or areliable to be injured by a tightly drawn binder.

The machine having been stopped in the position indicated, the. binderchain 53 with winch each holder base is equipped, is

passed over the pileand drawn tight, and. the nearest link 1s engagedwith the hook 55. .At this time the pivoted section 57 of the .presserplate is raised clear oft-he pile. as shown 1n Figures 11 and 12, 1norder to permit thus passing the chain around substantially the middleof the pile. It will be seen, therefore, that the pivoted section of ithe presser is a means for enabling this tliingto be done, and also forapplying pressure over that same part of the .plle. Any slack existingin the chain may be taken up by driving wedges between it and any partofthe pile. Thenthe brake 410 is relaxed and the carriage lowered toclearthe presser plate, and the assembled pile, including the holder, isremoved and set aside, to remain under compression until the adhesivehas suthciently set. Of course, the chain or hinder maintains thepressure which was previously mposed by the presser, and the springcompression of the holder or base causes the pressure to continuewithout substantial reduction, even though some slack should have beenleft in the chain before relieving the pile fromthe presser,

The carriage is then raised. and the brake set, the pressingmeansbrought back to normal position, and. the operation resumed to build andpress another pile of soles.

The means for stopping the machine at will, either in the normalposition where the secondary or retaining); pressers bear on the workand the main presser is raised, or in the final position where thesecondary pressers are relieved but the main presser bears on the pile,is an important feature ofthe machine,'which I desire to protect in thebroadest possible scope. To explain this feature, I will directattention particularly to Figures 13 to 19. The main shaft 73 isdrivenby a pulley 7 6, as already mentioned,

and this pulley is loosely mounted on the shaft, but is adapted to becoupled thereto by a rollerclutch, consisting of rollers 123 interposedbetweenthesleeve124, which is keyedjtothe shaft, and the hub 125 of thepulley. The actual contact between the rollers and the pulley hub ismade through a bushing or liner 1%, fiXed within thepulley hub, andprovided simply for the pur- ,is fixed in position by being mounted on apose of furnishing a sufficiently small, hard "and wear-resistingsurface to co-operate with the rollers. The latter are positioned andshifted so as to effect coupling and uncoupling by a cage 127, made asasleeve loosely contained in the annular space between the pulley huband the shaft sleeve 124, and in which there are slots, occupied by therollers, ,as shown clearly in Figures 16 and 18. On this cage there is aflange 128,,abutting against ahead 129 secured to the shaft, and in theface of said flange is a recess 130, containing a spring 131, and intowhich projects a'lug or stud 132 from the head 129, as shown by dot-tedlines in Figures 16, 18 and 19. The spring, by exerting, pressurebetween the stud 132 and the remote end of the recess 131, tends toshift the cage into the position shown in Figure 16, wherein the rollersare wedged intoclutching contact with the shaft sleeve ,and the pulleyhub. On the exterior of the flange 128 is a stop shoulder 133, which isarrested bva stop finger 134 to uncouple the clutch and stop themachine.

' The stop finger 134 is pivoted on. an arm 135 secured to a rock shaft136, to which also is secured the control treadle or lever 89,previously mentioned. =Connection between thefinger134 and arm 135 ismade by a pivot pin 137, which permits the finger to swing backward,that is, to the left with respect to Figures 14, 15 and .17 while on thefinger and arm are complemental abutment'shoulders, preventing thefinger from swinging forward when in aliginnent with the arm, and aspring'138 is connected to the finger and arm, being arranged and acting to hold the shoulders in contact. A link 139, connected to thefinger by a pivot at one si'deof the coupling pivot 137, is adapted toslide endwise with respect to a stud 141, and to be limited as to itsrange 01 movement by an abutment 142. The stud conveniently accessiblepart of the stationary frame, and preferably the link is slotted toembrace the stud, and so to be en gaged with it securely enough. Theabutnt 142 is conveniently provided by a screw, threaded into the rearend of the link, and adapted to be adjusted toward and awavfrom thestud, as shown by dotted l nes m Flgures 15 and 17.

Qn the shaft 72 is secured a cam 143, ,WhlCl'l controls an arm 144 onthe rock shaft 136. This arm may be a part of the ,treadle lever 89, ashere shown, or it may be otherwise mounted on the rock shaft.

Arm 144 carries "a roll 145, which bears on the rim of cam 143, thelatter having its high part,t-hat is, the part of its circumference moreremote from the cen ten-extending throughmore than a semicircumference.Actually, as represented here, the high part extends from the point 9around in. the direction opposite to the arrow as far as the point 15,,but it is not necessary that its extent be so great.

Figure 17 shows the condition when the machine is at rest, the clutchcontroller being then arrested by the end of the stop finger 134, andthe roll 145 being then against the low part of the cam. there being aspring 146 connected to the lever Si) and to a fixed part- 147 of theframing to hold these parts in the positions described. and to tendcoi'istantly to return them to these positions when displaced. Now. itthe treadle lever is moved downward, the stop linger 134 is disengagedfrom the stop shoulder 1233, allowing the clutch to become connccted.Immediately then the shal't 73 is set in rotation, and the cam 14-3 isalso rotated by the geared connection between the two shafts, wherebythe high part of the cam is placed beside the stud on arm 144. holdingthe arms displm-cd in the positions shown in Figure 15, and making itunnecessary for the operator to continue to apply prcssure to thetreadlc lever. Spring 33 is powerful enough to prevent the toggle. whichis provided by the finger 134 and arm 135, from breaking at the knuckle137. whereby this toggle device moves as a unit clear of the shoulder133 and. until arrested by the abutment 142 bringing up against the stud141. llhereupon the machine continues to run until the low part oi thecam beyond the point I), arriving beside roll 145. allows the stopfinger to arrest the stop shoulder 133. As the shafts 73 and 72 aregeared together in a two to one ratio. the shaft 73 makes two rotationsand shaft 752 a complete rotation before being thus stopped. Thiscarries out one complete opio; cycle 01' the pressing means.

. to stop the machine in the cycle as already explained. when the timecomes for binding the bundle oi soles. and in order to stop it then. thetreadlc is still further depressed, or, in other words. the treadlclover is moved still further in the first direction. and thereby the arm135 is moved beyond the point in which it is arrested by the link 135).Force being then applied to the treadle great enough to overcome thespring 133, the tow gle device is bent at the knuckle, and the stopfinger is turned around pivot 140 as fulcrum. until its tip is broughtinto the path of stop shoulder 133. and thereby the shaft 73 is allowedto turn through only one complete rotation. and the machine is stoppedwhen only half of the cycle has been completed. 0t course. the cams forcontrolling the prcssers are so constructml and timed that the secondaryprcssers are disengaged and the main prcsscr is engaged with the arm. atthis time. Thus, by moving llll llii

v ew/4es i W the control treadle to a part only ohits luli range oi.uioven'ient, the machine niayhe caused. to make a complete cycleWll'llfi-B hj/ movin it through the Whole o l range the'lllhClliilGlllpliQS only a partial. rotation; (ll? course. it isunderstood that the action o l spring 130 on the dutchis rapid that. the

shoulder 133 carried the endot the stop linger immediately the latterhas been displaced from the shoulder in the full,

movement of the. treedlep Where. an, even though this movement hecarried out to the end WliillOlll} interruptiong. the stop fino'er willnot he returned against the clutch controller in a pos ition to obstructthat shoulder. Fiiirmre 14 shows theparts inthe position Wherethe m hineis stopped in mid-cycle... i it y 7. Having now dercrihed andillustrated. in sutliciently t'ull (lfillilli to onahlegothers skilledin the art l? and usethesmm, a satisfactory oper re machine.(ll'ilih'u'fljfllllfll my invention, I would state that I do not limitthe protection which I claim an details ot that particularmachine. h llF vi 1 my inventiohthe essential or J machine embodied in any constiever superficially diverse I from that [here shown, which accomplishesessentially the same results in substantially the "In the operation ofthe machine,

holder for tliepile ot soles, with its springs pressed surface plate,serves a most impor- 1 tant fnnctionin that, after the pile .hasheendepressed clear of? the secondarypressers, it forces the pile:against-such secondary pressere with suhstantiallf." wundiminishedpressure; and, further that being under resilient compression when thehinder is passed around the pile; it maintains pressrure in the solesafter their removal from the machine.

Vi liere aer in the oren'oino' d tire position, it have done so for thepurpose only otclear and concise description oi this particluaremhodiinentot' the invention, and

mehted soles,to inention only one out its to possible uses, el'l'ectslarge economies in ha-ring oi time to the workman, in the quan- =1tityot productturned outlay the Workman, w. ahd in the quantity 0 tadhes ehsed. Faince the cemented article is 'i-nt undcr pressure ho assoon as itis cemented; a thin, quichdrystru(':l'nres in which the invenembodied or all the modes oi consisting of e. pivoted arm. and a pressin,JSJW movable toward. and away from said 7 v riptioh haveused termsii'ulicating direction or rel-a pjrcssure a inn adhesi re may he used,and in, which only I as niuohv oi the adhesive principle ilhafl heincluded as is necessary to make the bond; and it niuy he applied to theworl: pieces in a thin l er. Without any excess. '7

i-la'vii now explained the principles of my llll 'QflclOll. .aiuldcscrihed an lmdiincnt thereof in one sp cific machine although withoutllai'it ezopted to describe all I on may l; as use. l do claro that Whatl claim, an d desire to secure by Letters Patent s:

l. l rupressing machine for CEIMEIiK-Al arti cles con'iprising asupport. a holder detachahl'y mounted on said support and adapted toreceive it series o' such articles =ud anions for applying pressure tosuch so cles. said. holder having); resiliently mounticld under. thepressure applied to the articles. llln a pressing; machii'ie, acarriage, a ide a toothed element cxterulin along: the lde, a gearcarried by the carriage mesh 11 0- with s1. ,h toothed element. ahrakeassociated with the grer-lr to oppose lllli'tlOilill resistance torotation thereof and therehv to yieldingrly resist travel of the carria'e. said carriage being adapted to support a 'es' oi vrticies. 8. In apressing niachuie the oomhination with a presser and ineans for moving};the

same hack and forth in a 'iven path, ol? :1

it. t A

secondary presse atone side of said path path, and means for so movingthe secondary presser, comprising gzgear segment (3011-.

nected thereto and anoperatiu mentineshing with said sepjmont in. a.i'u'ess machine a, work holder adapted to hold a series of articlesnndcr nd comprisir r a hate. u. Work-engaging; .p to, and SPYIUEQSconnecto '1 plate and base and permitting .yieldin resisted movement Gilthe 'lornier toward t latter. i r

5. In a press machine a worlr holder adapted to. hold a oi articles.under pressure and comp ising :1 base, a work on gaging; plate, springsonnecting; said plate and. base and permitting yieldingly resistedmoven'lent oil the :iormer toward the latter, and means on said base torattachment of a hinder passed ahout a pile oi? articles placed movementof the former toward the latter a lie-rile binder permanently attachedto one side of said holder base and adapted to be passed over a pile ofarticles placed on the holder plate, and fastening means at the oppositeside 01 the base for securing the binder when so placed.

7. In a press machine a work holder adapted to hold a series of articlesunder pressure and comprising a base. a worlocugaging plate. springsconnecting said pi and base and permitting yieldingly resisvd movementof the former toward the l: a flexible binder permanently attached oneof its ends to said base and adapted to be passed around a pile ofarticles bearing: against the plate. and means for sec-urin .16 binderso placed whereby to maintain the articles under pressure of thesprings.

8. A press machine adapted to hold a pile of cemented articles underpressure and to apply pressure to articles successively added to thepile, comprising a work support. a back and forth moving presser for :1vlyine pressure intermittently to articles placed in a series on saidsupport, means for so moviuc: said presser, a retainer and means foropen ating it intermittently to retain said articles under pressure whensaid presser is withdrawn, said presser and retainer being constructedto permit insertion between them of articles added to the pile. andcentering means arranged to aline articles so added with those to whichpressure has already been applied.

9. A press machine comprising a presser movable back andforth, a worksupport movable in the line of pressure application of: said presser.yielding means resisting movement of said work support, retaining meansadapted to hold under pressure articles upon which said presser haspreviously been pressed, being constructed and located to provide a.space for the reception of addi tional articles when the presser ismoved away from the work support, and centeriusr means flanking thespace so provided adapted to aline the articles inserted in said spacewith those previously pressed upon.

10. A press machine comprising a prcsser movable back and forth, a worksupport movable in the line of pressure application of said presser,yielding means resisting: movement of said work support. retaining meansadapted to hold under pressure articles upon which said presser haspreviously been pressed, being constructed and located to providea spacefor the reception oi additional articles when the presser is moved awayfrom the work support, and centering means comprising a. stop at theback of such spaceadaptedto be struck by an article inserted into thespace and being movable in the direction of insertion of such article.and side gaging arms at opposite sides of the space connected with andactuated by said stop to move toward the middle of the space centerir"means for aliniug; :"h art? with sad series comprising; sc a rateduagi'i an members. a stop located and will movable line between saidgaging members. an lections between said stop and gracing? hers operableto more said members tormd each other when the stop s moved in ourdirection.

centering mechanism conuiris ur separated gaging members. a stop locatedand movable in a line between said llMHl l'l'. and connections betweensaid stop and members arranged to shift the members op 'rJ1.'--itcly toone another when the stop is rooted.

l3. centering: mechanism couiprirhz r separated pivotally mounted prcing; ur -t. stop movable in a line l'ietwecn said aruwv and actuationarms secured to said o apgiui'i arms p ectinp; respectively from thelatter to the & op and havins: a, sliding: connection therewith. wherebywhen the stop is mo ed the gaging arms are likewise moved oppositely toone another.

14-. In a press machine having a suppo t inn frame, an adjustablecentering? dvvicc consisting: ot a plate. a stop member Sll(ll]l lymounted upon said plate. side gracing; arms pivoted to said plate. andconnections between said stop member and paging arms. constructed totransmit simultaneous movement to the gaging arms from movement oi' thestop. sa plate having: means for detach able connection with the.machine 'lrouic.

In a press machine the combination with a frame, a presscr and worksupport mounted by said frame and being inovohlo one with respect to theother whc chv to apply pressure to a series of a ticles ituortcd betweenthem. and centeriugr means mou ted upon the frame in a location to causoliuoment with one another oi artic es stir-cos sively inserted betweenthe prcssor and work support, said centering; means iucludi r sidemembers adapted to embrace the iirrrtwl article and being); movabletogether and apart. a stop one .able by the iiuae tod article andconnected to cllcct uioi'ctuout 1" lr. side members when so engaged. anda holder carrying said side members and stop and being demountablysecured the frame to permit removal and substitution o l a dill'erentcentering device.

1.6. In press machine the coiu iiuitiou of a holder adapted to support apile o'l' press-ml articles. and a presser having); an e.\ endcdpressing suriacc to bear upon said articles. a part. of said presserbeing rctrvctihlc while the remainder of it overts pressure on thearticles whereby to permit passing of a binder around the pile.

17. In a press machine the combiuatimi of 1 aholder adapted to support apile of pressed articles, whereby to permit passing of a bmderaround thepile, said retractible part forming one end of the pressenand being turried back. c

1 18,111 a press machine a presser comprisa plunger, a press platesecured to the end of said plunger transversely thereof and having apivoted end section adapted to be turned back toward the plunger, and abrace connected to the pivoted section detachably engageable with theplunger when the pivoted section'is extended in continuationoi theplate. I c

19. A machinetor pressing cenielnted arhin ed to the adjacent partwhereby to be i ticles comprising a frame, a worksupportingqcarriagemounted to travel on said frame, a presser movable back and "forthtoward said carriage substantially in the line ofniovement thereof,airiction brake device associated with said carriage and with the frameforresisting movement of the carriage and thereby causing pressure whosustained by the cemented articles from the presser and a signalarranged to be moved under control of the carriage when the latter hasreached a g1ven point in its travel.

c 20. In a press machine ,a guide having a series of teeth, a carriagemovable along said guide, a toothed wheel 1ournaled upon said carriageand meshing with the teeth of the guide, a brake drum connected to saidwheel and rotatable thereby, and a brake shoe attached to the carriageand bearing upon said drum to resist movement of the carriage.

21.1n a press machine a guide having a series of teeth, a carriagemovable along said guide, a toothed wheel journaled upon said carriageand meshing with the teeth of the guide, a brake drum connected to saidWheel and rotatable thereby, a brake shoe attached to the carriage andbearing upon said drum to resist movement of the carriage, and

means for setting and releasing said brake shoe also carried by thecarriage.

22. In a press machine a guide having a series of teeth, a carriagemovable along said guide, a toothed. wheel journaled upon said carriageand meshing with the teeth of the guide, a brake drum connected to saidwheel and rotatable thereby, a brake shoe attached to the carriage andbearing upon said drum to resist movement of the carriage, said brakeshoe being a flexible band embracingthe drum and anchored at one endupon the carriage, a lever pivoted to the carriage con- 1'1ected to theother end of said band and a manually operable lock device arranged tobear upon said lever and movable to apply erate said presser andretainer in alternation for respectively applying and retaining pressureupon Work abutting against the Work holder, of a starting "andstoppingmechanism automatically efliective to stop the machine when the retaineris active and the presser is inactive, and means for causing saidmechanism tostop the machine at a time when the presser active and theretainer is inactive.

24, A press machine comprising in combination a work holder, a pressermovable toward and away from said work holder, a retainer movable intoandout of contact with work pressed upon by the p'resser, means foroperatingsaid presser and retainer in suchalternation that the retaineris engaged with the work 'whenthe presseris withdrawn, and the retainerismoved away from the work when the presser is forced against it, astart and stop mechanism automatically operable to stop the machineafter each cycle when the retainer is engaged with the Work and thepresser Withdrawn, and means associated .withsaid mechanism forcausingit to stop the machine at an intermediate point in the cycle whenthe presser is in contact I with the work and theretamer Withdrawn. 25.A press machine including pressing means, a stopping and startingmechanism adapted to operate said pressing means through a cycle andthen stop, a controller movable to set said stopping and starting meansin operation, and meansalso operable by said controller for stopping themachine at a point before the end of the cycle.

26. A press machine, including pressing means, a driver loosely mountedwith resaid stop in position for causing uncoupling ot the clutch, amechanism timed with the machine for holding the stop in the inoperative position while the pressing means completes a cycle, and provisionsfor enabling movement of the controller to place the stop in theuncoupling position prior to the completion of the cycle.

27. A press machine comprising pressing means, a rotatable driver, arotatable shaft, mechanism through which said shaft operates saidpressing means,aclutch adapted to couple said driver to said shaft andto uncouple it, complemental stops for causing uncoupling of the clutch,one of said stops being carried bythe clutch and the othervbeing movableinto and out of its path, a. controller associated with the last namedstop for moving it out of the path of the first stop, means normallytending to return it into such path, an arrester driven with the shaftfor holding the second step in the out position while the driven membermakes a complete cycle, and means operable by the controller forshiftingthe second stop into the in position independently of thearrest'er. i

28; A press machine comprising a presser, a retainer, means foroperating said presser and retainer in repeated alternation to pressupon a pile of articles and to hold such pile in compressed conditionwhile another article is added, thereto;-said means comprising a drivenshaft, an independently rotatable driver, a clutch for connecting anddisconnecting said driver respectively with and tromthe shaft, a stopabutment rotatable with the clutch adapted when arrested to eti'eetuncoupling thereof, a stop finger movable into: and out of the pat-h ofsaid abutment for arresting and releasing the same, a controllerconnected to said finger movable in one direct-ion to displace thefinger from the abutment, a. cam driven by saidsha-ft for holding saidcontroller in the finger-displacing position, said. finger beingjointed, and a fulcrum member arranged to act on said finger between itsjoint and the abutment when the controller is further moved in the samedirection, whereby to bring, the finger into the path of the abutment asa result of such further movement.

29. A press machine designed for progressively adding separate articles,under pressure, to a pile of articles already under pressure, comprisinga back and-iorth moving presser, a retainer displaceable transversely ofthe path of said presser into and out of position to bear on thecompressed articles, mechanism for operating said presser and retainerin alternation to bring the retainer into action on the articles, whenthe presser is out of action, and vice versa. comprising a drivenmember, a driver, a clutch between the driver and driven member, and aclutch controller, having an abutment, rotatable with the driven memberand adapted to be arrested for causing the discmincction oi the clutch,a jointed stop finger movable into and out of the path of said abutment,a controllcr connected with said fingerand operable to move it out ofsaid path. when operated in one direction, and an arrester for that partof the finger between its joint and its engaging portion adapted toarrest and cause movement of said engaging portion into the path of theabutment with a further movement of the-controller in the samedirection.

In testimony whereof I have atlixed my signature.

FRANK A. BRACKEUF.

(ill

